Improvement in smut-mills



K. SCHWAB.

Smut-Mills. No 147 798 Patened Feb. 24.1874.

NITED STATES PATENT OEEIG..

KILIAN SCHWAB, or LEBANON, ILLINoIs.

IMPRVEMENT IN SMUT-MILLS.

Specification forming part of Letters Patent No.11117f7'98, datedFebruary 24, 1874 application filed December 8, 1873.

To all whom t may concern.-

Beit known that l, KILIAN SCHWAB, of Lebanon, St. Clair county, State ofIllinois, have invented an Improved Smut-Mill, of which the following isa specification:

This invention pertains to smut-mills for ther purpose of cleansinggrain from its smut, impurities, and the like; and the constructivenature thereof consists, rst, in the combination of a fan-cylinder witha stationary smutter, the fan-cylinder operating so as to force thegrain in its passage to be retained against the smutters; secondly, inthe peculiarlyconstructed smutter, consisting of separate punched metalsheets, inclinely positioned and secured, and arranged in cylindricalform, to act as the smutter for the grain 5 thirdly, in the combination,with smutter aforesaid, of a stationary sievelike cylinder, throughwhich the impurities from grain pass, 'ourthly, in the combinedarrangement of the revolving tan-cylinder, and stationary parts, such assmutter, sieve-cylinder, and outer casing, with relation to each other,all of which will hereinafter more fully appear.

Of the drawings, Figure 1 is a sectional elevation; Fig. 2, a sectionaltop plan; Fig. 3, a top plan with part broken away 5 Fig. 4, a detail of-perforated cylinder.

Aisa strong, stout, and durable frame. At top and bottom the frame A hascross-supports a a', in which the journals of the power-shaft B arefitted to turn. The shaftB supports the fan-cylinder (l, so as to turnwith same. The fan-cylinder C consists of top and bottom circular headsc (see Fig. 1) and the uprightfanblades c1. (See Figs. 1 and 2.) The topand bottom heads chave circular openings o2, (see Figs. 2 and 3,) toadmit air through top and bottom of cylinder. The circular opening topof cylinder C has a rim projection, c3, Fig. 1, to prevent the grainwhich is fed top of said cylinder from fallinginto same, or through itssaid opening. The fan-blades c1 are secured in diagonally and relativelyapart, (see Figs. 1 and 2,) and have their outer edges formed with teethc4, the object of thus positioning the fan-blades o1 being to preventthe grain, during its passage through the mill, from being thrown orforced within fan-cylinder when same revolves, the teeth c4 offan-blades being to act with relation to the smutter, to create theZ-like passage for the grain to pass, and also to equally cause saidgrain to be retained against said smutter. The smutter andsieve-cylinder are combined in one, and are stationary. Hence I provide,surrounding the fan-cylinder C, a frame-cylinder, D. (See igures.) TheframecylinderD consists of upright frames d, united to top and bottomclosing heads d1 d2. (Seeiigures.) The heads di d2 have provision leftto leave o pen the circular openings c2. L To the inner side of framedcylinder l), I provide a wirenetted covering', forming the stationarysieve-like cylinder at. (See Figs. 1 and 3.) 'lhrough the openings ofsaid sieve-cylinder the dust and impure particles of grain are sitted.The smutter E consists `of metal sheets @,so perforated as to presentroughened edges, as indicated in Fig. 1. The sheets e, composingsmutter, can also be ot' the modified construction, viz., as shown inFig. 4c, with punched diagonally-serrated edges. The peculiararrangement and attachment of punched metal sheets e, to form thestationary smutter here designed, are such as to achieve, with relationto the fan-blades c1 of the fan-cylinder, a Z-shaped passage for thegrain. (See Fig. 1.) Hence I provide the frame-cylinder D withincline-shaped strips el, Fig. 1, to which each series of punched sheetse is attached. Thus secured, the bottom edge of each metal sheet e isinclined inward. Further, each under punched sheet e is so attached andarranged, with relation to its upper one, that the bottom edge of thefirst-mentioned projects below the top edge of the bottom orlastmentioned sheet, and as indicated in Fig. 1, the object of thusalternately secnring the punched sheets being to permit the grain, inits passage down the top sheet, to be turned under and back of thebott-oni edge of same, reach the top of sheet below, and thus follow thecourse through the winding or Z-shaped pass age created between thealternate punched sheets and the serrated edges of the fanblades o1. Atbottom the smutter, or, properly said, the frame-cylinder bottom headd2, is lined with sheet-metal lining, leaving a circular rim,

e3, to rise above the opening of said bottom head, (see Fig. 1,) toprevent the cleansed grain passing out of said opening. ln fact,

the grain is fed to the machine through the slotted opening l*` at top;(see Fig. 3,) through the head d1 is passed from over the head top offan-cylinder C; thence passed through the mill on the bottom head I? ot'frame-cylinder; thence is discharged out through the bottom slet oropening F. (Sec Fig. l.) It is the cylindrical smutter which, by meansof its roughened edges, takes away from the grain its defective parts,and otherwise properly removes the smut and impurities. Also, it will benoticed that the fan-cylinder C is operated at same time with such speedas to produce a wind force sufficient to force and retain the grain inits passage against or to be passed over the smutter. I rely chietlyupon sufricient fan action to accomplish this object. lThe Wind power isfurther utilized in forcing and otherwise causing the dust, impurities,and the like taken from grain to be passed through the sieve-likecylinder 6k To catch and receive the relnoved smut, dirt, and the like,I further provide a suitable cylindrical outer casing, G. The outercasing Gr surrounds the framccylinder D and its inner parts aforesaid,and can be made an entire cylinder, or, as here shown, (see Figs. l, 2,and 3,) to consist of foursectionalcylindersides,withflanged edges, tobe attached properly to the frame A of the machine. At bottom, theopposite sides ofthe outer casing G can have suitable openings for thedischarge of its contents. For different qualities of grain to becleansed, the shaft B can be supported adj ustably, so as to be raisedo1' lowered, thus raising and lowering at same time its fan-cylinder C,and consequently enlarging ornarrowing the passages for the grain, asrequired and deemed best.

Vhat I claim is- Y l. The stationary smutter E, having a series ofinwardly-attached metal punched or perforated sheets, e, said sheetsbeing so arranged that the bottom edge of the top sheets of each seriesshall partly project below the top edge of the next following series, asand for the purpose herein shown and described.

2. The combination of fan-cylinder C, con.- sistin g of top and bottomheads c, and fan-blades c1, having serrated edges c4, with stationarysmutter E, consisting of perforated sheets c, substantially as hereinshown and described.

3. The combination of a stationary smutter, E, having perforated sheetsc, arranged as described, and sieve-cylinder d3, as and for the purposeset forth.

4. The combination of revolving fan-cylinder C, stationary smutter E,sieve-cylinder di, frame-cylinder D, and outer casing G', all said partsbeing arranged and constructed, with relation to cach other, as and forthe purpose set forth.

In testimony ot said invention I have hereunto set my hand in presenceof witnesses.

KILIAN SCHWAB.

Vitnesses:

CHRISTIAN MUELLER, SEVERIN E. Mor'r.

